Hoshiakwa et al’s 2012 study focused in the cross sectional area of the thigh. Soccer players aged 11-13 had their cross sectional area measured along with dynamic knee flexion and knee extension.

Knee flexion strength was comparable in the two groups but knee extension strength was much larger in the athlete’s group. We know that knee extension strength helps prevent ACL tears, quad sprains and hamstring sprains. This furthers the evidence that athletics is the way for children to develop good habits that will help them throughout their lives to maintain proper function.